Question

When rebuilding an engine with a camshaft located in the cylinder block, what would result from a failure to replace worn camshaft bearings?

a. Noisy valve operation
b. Noise during high engine loads only
c. Lower oil pressure readings
d. Premature camshaft gear

Answer 1

Failing to replace worn camshaft bearings during engine rebuild can result in lower oil pressure readings, leading to insufficient lubrication and potential premature engine component wear.

Step-by-step explanation:

When rebuilding an engine with a camshaft located in the cylinder block, failing to replace worn camshaft bearings would likely result in lower oil pressure readings. The camshaft bearings are critical to maintaining the proper clearance and oil film between the camshaft and the bearing surfaces. If these bearings are worn, the clearance can increase, causing a drop in oil pressure. This loss of pressure can lead to insufficient lubrication of engine components, potentially resulting in increased wear and damage over time, including premature camshaft and other engine component wear.